Michael Peterson made a frantic call to the police - claiming he had found wife Kathleen unoncscious at the bottom of a staircase.
The American author, 78, said his partner had slipped and fallen to her death in their North Carolina home, but the blood on the stairs and wounds on her head led police to believe this may not have been an accident.
Peterson, who was the last person to see his wife alive, pleaded guilty to killing wife Kathleen by involuntary manslaughter as part of an 'Alford plea' but has always insisted he did not kill her.
